I spoke to soon about the upgrade working

Everything appears fine in LSManage however the website is not working.
I receive the following message:
System.Exception: This page has a MM:DataSet, MM:Insert, MM:Update or MM:Delete tag with a null or empty value for the ConnectionString and DatabaseType attributes.
Often, such values come from application settings in the web.config file. That file might be missing from the server executing this page. Or, it might be missing the particular add key tags for the database connection this page uses. If you are using Dreamweaver, look for the web.config file in the local root folder of your Dreamweaver site. Once you find this file, you can either:
Put this file onto the server that is executing this page.
Copy the add key tags from the web.config in the local root folder of your Dreamweaver site and paste them into the web.config file in the server that is executing this page.
I don't have a web.config file... maybe that's the issue?
I just upgraded to 3.5, copied all new website files in from that download and then 3.5.1 (beta) and replaced the 10 files from the website folder in that upgrade with my active website.